THIBAUT de Blois, son of ETIENNE Comte de Blois & his wife Adela of England ([1090/95]-10 Jan 1152, bur Lagny). "Henricus comes cognomina Stephanus necnon et Adela uxor eius cum filiis nostris" granted immunities to Chartres Notre-Dame by charter dated [Oct 1100/1101], signed by "Stephani comitis, Adele comitisse, Guillelmi, Stephani, Odonis, Teobaldi"[239], which suggests that Thibaut may have been the fourth son although this is inconsistent with his having succeeded his father. It does not appear from other sources that Thibaut was younger than his brother Etienne. His parentage is stated by Orderic Vitalis, who names him second in order of the sons which he lists[240]. Orderic also provides some indication of his birth year when he records that his mother Ctss Adela provided troops to Louis VI King of France at the time of the siege of Montmorency in [1108] "because Count Stephen her husband had gone on crusade and her eldest sons, William and Theobald, who were not yet of age, were unable to command troops of knights"[241]. The description is confused because Count Etienne had died several years earlier, but it nevertheless provides some indication of the comparative youth of the brothers Guillaume and Thibaut at the time. This is corroborated by the charter dated 2 Apr 1104 under which "Hugo comes Campanie Teotbaldi comitis filius" donated property to the abbey of Molesme which names "…comitissam Adelaidem uxorem fratris mei comitis Stephani nepotes…" and is subscribed by "Teotbaldus puer filius Stephani comitis nepos huius comitis Hugonis"[242]. He succeeded his father in 1102 as THIBAUT IV "le Grand/le Vieil" Comte de Blois, de Troyes. He was invested with the county of Chartres in 1107. Chibnall speculates that the delay in this investiture may have been due to lack of proof that his father was dead rather than Thibaut's own youth[243], but Thibaut´s age is the obvious reason. Orderic Vitalis states that Comte Thibaut supported Hugues du Puiset during his rebellion against Louis VI King of France in 1111, which led to more widespread warfare culminating in Thibaut defeating the king's forces near Meaux later in 1111[244]. Henry of Huntingdon records that Thibaut rebelled against King Louis in 1116, aided by his uncle Henry I King of England[245]. It is assumed that these two reports refer to the same rebellion, with contradictory dating. The Chronicle of Alberic de Trois-Fontaines records that "Hugo comes Campanie" became a Knight Templar in 1125 and was succeeded by "Theobaldus nepos eius"[246]. Orderic Vitalis states that Thibaut was proposed as successor to Henry I King of England by Normans at a meeting at Neubourg in Dec 1135, but when they heard that his younger brother had forestalled him, they agreed to serve King Stephen[247]. Orderic Vitalis also records that he was offered the crown of England in 1141 after his brother King Stephen was captured at Lincoln, but declined the offer[248]. He entered into conflict with Raoul Comte de Vermandois in 1142-43. Louis VII King of France declared war against him, laid siege to and captured Vitry but signed peace at Vitry in 1143. The Chronicle of Alberic de Trois-Fontaines records the death "1152 VI Id Jan" of "comes Campanie Theobaldus" and his burial "apud Latinicacum"[249]. A list of foundations at Troyes records the memory "10 Jan" of "Thibault Comte de Champagne décédé ce jour"[250]. The necrology of Saint-Etienne, Troyes records the death "10 Jan" of "Theobaldus comes Campanie"[251]. The necrology of Saint-Loup, Troyes records the death "10 Jan 1152" of "Teobaudus comes" and his burial "in ecclesia de Lagny"[252]. The necrology of Chartres cathedral records the death "IV Id Jan" of "Teobaldus comes palatinus", stating that "cuius filius Teobaldus comes Blesensis et Francie senescallus…matris sui Matildis" donated property for his soul[253].
m (1123) MATHILDE von Sponheim, daughter of ENGELBERT Marchese of Istria [later Duke of Carinthia] [Sponheim] & his wife Uta von Passau [Ratpotonen] (-[13 Dec] [1160/1161]). She is named by Orderic Vitalis, who calls her father "Duke Engelbert", when recording her marriage[254]. The Chronicle of Alberic de Trois-Fontaines names "comitissa Mathildis Campaniensis et uxor Renaldi comitis Nivernensis et comitissa Montis Veteris iuxta Coloniam et mater illorum Romanorum qui Froiepain dicuntur" as sisters of "archiepiscopi Coloniensis Frederici"[255], although the latter is shown by other sources to be their paternal uncle. "Teobaudus Blesensis comes" made a donation to Montiérender by charter dated 1139 with the consent of "Matildis comitissa uxor mee et Henricus filius meus"[256]. "Comitissa Mathildis et filius eius Henricus et Theobaudus et Stephanus" donated property to the abbey of Fontevraud by charter dated to [1125/49][257]. A list of foundations at Troyes records the memory "13 Dec" of "Mathilde épouse du comte Thibaut"[258]. The necrology of Saint-Etienne, Troyes records the death "13 Dec" of "Mathildis comitissa"[259]. The necrology of Chartres cathedral records the death "Id Dec" of "comitissa Mathildis mater…archiepiscopi Senonensis Willelmi et…Henrici comitis, Teobaldi comitis atque comitis Stephani"[260].
Mistress (1): ---. The name of Comte Thibaut's mistress is not known.